this is a physics question involving time, acceleration, initial velocity and final velocity.
2006-06-06 23:04:50 · 9 answers · asked by Sosela 1 in Education & Reference ➔ Primary & Secondary Education
if
a=(v-u)/t
then
a*t=v-u
then
t=(v-u)/a
or
t=(15-0)/0.75
So as the previous poster says the answer really is 20
2006-06-06 23:12:49 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Well it's 20 alright. But if you want the steps,
a=v-u/t
t=v-u/a
t=15-0/0.75
t= 20 sec.
2006-06-06 23:23:40 · answer #2 · answered by Sabadilla 2 · 0⤊ 0⤋
a=(v-u)/t
Rearranging the equation
t=(v-u)/a
Substituting known terms
t=(15-0)/0.75
t=20
2006-06-06 23:15:50 · answer #3 · answered by beb 3 · 0⤊ 0⤋
The answer is fuctifino. Now what's the question? Lol :)
2006-06-09 12:31:07 · answer #4 · answered by TrueBrit 3 · 0⤊ 0⤋
All the other questions are in English?
2006-06-06 23:13:40 · answer #5 · answered by karen 2 · 0⤊ 0⤋
hope u know newton's law v=u+at
t=(v-u)/a
t=15/0.75
t=20
Ans: 20 s
2006-06-06 23:39:37 · answer #6 · answered by mickey 2 · 0⤊ 0⤋
20
nope that's wrong - damn - phone's ringing
2006-06-06 23:07:13 · answer #7 · answered by JeckJeck 5 · 0⤊ 0⤋
14.4375
2006-06-06 23:19:36 · answer #8 · answered by bud_man128 1 · 0⤊ 0⤋
18.9
2006-06-06 23:08:12 · answer #9 · answered by Linzi 2 · 0⤊ 0⤋